说明月牙板机构的组成，各杆件的连结方式和顺序。_爱下问搜题

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问题问答题简答题

说明月牙板机构的组成，各杆件的连结方式和顺序。

答案

参考答案：

用牙板机构：主要由偏心杆、月牙板，摇换、拉杆2组、还包括用牙板吊杆、回动臂、四动同和回动轴。

完形填空

My father is a strong fisherman. He loved the sea and would stay out until he caught enough to 16 the family .
When we met   17 weather , he would drive me to school with his old truck . And after we 18 , he would bend over and give me a 19 on the face and then tell me to be a good boy. I always felt very 20 in front of so many other 21 . I was already a twelve-year–old young man , but my father still kissed me goodbye !
Then on a rainy day I   22 to tell him my feeling . When we stopped at the school gate, the   23 big smile appeared on my father’s face . I   24  what would happen next. I   25   put my hand up and for the first time said “ No” to him . The smile on his face immediately changed into a 26 look. He looked at me for a long time and   27   began to appear in his eyes. I was shocked. I had never   28   him cry ! Then he said, “ You’re right . You are a big boy … a man. I won’t kiss you 29  .’’
Not long after that, my father went to sea on a bad day. 30  of the fishermen stayed at home , but not Dad , because he had a big family to feed . But after that day, he 31 came back . Later his boat was 32 with his nets half in and half out . He must have   33 a strong wind and was trying to save the nets.
How I wished I had not   34  my father’s kiss! And from this I have learned that we should take every chance with our family and friends as the last one in our lives. We can have 35 regrets by doing so .

C．schoolmates

A．disappointed

C．understanding

B． immediately

填空题

射孔弹的技术要求中，其杵堵率应不大于（）。